projectile.cpp

#include "projectile.h"
#include <cmath>

using namespace std;

projectile::projectile(){

	x = 0;
	y = 0;
	theta = 0;
	power = 10.0;

}

double projectile::getx(){

	return x;

}

double projectile::gety(){

	return y;

}

// Used when firing to get ship position
void projectile::set(double nx, double ny, double ntheta, double nvx, double nvy){

	x = nx;
	y = ny;
	theta = ntheta;
	vx = nvx;
	vy = nvy;

}

// Updates position using built-in velocity variables
void projectile::move(){

	x += power*cos(theta)+vx;
	y += power*sin(theta)+vy; 

}

// Draw projectile to screen
void projectile::draw( SDL_Surface* screen, Uint32 color ){

	Draw_FillRect( screen, x-1,y-1, 3,3, color);

}